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What is the trend in ionization energy as you move across a period from left to

Practice Questions

Q1
What is the trend in ionization energy as you move across a period from left to right?
  1. Increases
  2. Decreases
  3. Remains the same
  4. Varies unpredictably

Questions & Step-by-Step Solutions

What is the trend in ionization energy as you move across a period from left to right?
  • Step 1: Understand what ionization energy is. It is the energy required to remove an electron from an atom.
  • Step 2: Know that a 'period' refers to a row in the periodic table of elements.
  • Step 3: Recognize that as you move from left to right across a period, you are adding more protons to the nucleus of the atom.
  • Step 4: Realize that more protons mean a stronger positive charge in the nucleus, which attracts electrons more strongly.
  • Step 5: Understand that because of this stronger attraction, it becomes harder to remove an electron.
  • Step 6: Conclude that as a result, the ionization energy increases as you move from left to right across a period.
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